On 10/17/2012 11:27 AM, Carsten Haitzler (The Rasterman) wrote:
> how could i do something convenient like
>
> obj = eo_add(class, parent,
> GEOMETRY(10, 20, 50, 30),
> FILE_SET(file_find("image.jpg")),
> GROUP_SET(group_find("base")));
>
> the only way is to provide a buffer to snprintf into OR to return a strduped
> or
> strinshare'd string... the problem is all our existing api doesn't free this
> string afterwards.
Why not always stringshare these strings, regardless of them being
constant or heap-allocated, and provide something like:
void *
idle_free(void *ptr)
{
idler_add(free, ptr);
return ptr;
}
So you can do:
char *
file_find(const char *name)
{
char *tmp = malloc(...);
...
return idle_free(tmp);
}
Since you're not going to run your main loop while constructing the
object (and thus calling the idler callback), and since eo_add() will
now manage all strings by using stringshare, this is safe, small, and
poses no additional overhead if you use static strings except for
stringshare, which is already pretty efficient. Of course, if your main
loop runs while you're running eo_add(), all hell breaks loose, but then
you deserve it anyway.
Cheers,
Leandro
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